Improve the network performance of Japan's remote connection to domestic OA systems??? Solution//Glo

Improve the network performance of Japan's remote connection to domestic OA systems??? Solution//Global IPLC service provider of Shigeng Communication

一、For many Chinese companies with branches in Japan or Japanese companies that maintain close coordination with their domestic headquarters, the network latency issue of Japanese employees accessing domestic OA systems has become a core pain point affecting the efficiency of global operations. The straight-line distance from Tokyo to Shanghai is only about 1800 kilometers, but in actual visits, users often face high latency of 150-300 milliseconds or even over 600 milliseconds, with page loading lagging and document opening timeouts being common occurrences.

To solve this stubborn problem, it is necessary to first deeply analyze the underlying causes and then adopt systematic optimization strategies.

1. Traceability: The Four Root Causes of Slow Network in China and Japan

Physical distance and routing detour: The transmission of public network packets is not a straight line. Due to the routing strategy of international operators, data packets sent from Japan are often forced to detour around Singapore, Hong Kong, and even the west coast of the United States before reaching mainland China. This kind of detour extends the actual transmission path by more than 30%, which is enough to make the operating experience slide from "smooth" to "stuttering" for OA systems that require multiple round trip interactions.

International export congestion: The international exports of China's three major telecom operators are highly congested on weekday evenings (corresponding to Japan's daytime), with peak packet loss rates reaching 15% -25%. The OA system is based on the HTTP/HTTPS protocol and is extremely sensitive to packet loss. The TCP protocol will actively reduce the transmission rate in high packet loss environments, resulting in "large bandwidth but still slow speed".

Security strategy and IP restrictions: For security and compliance considerations, many domestic OA systems default to enabling regional access control, identifying overseas IPs as "high-risk overseas areas". This often leads to forced logout, SMS verification, and even direct refusal of login, seriously interrupting business processes.

Improper application layer configuration: IPSec encryption and decryption consume additional performance, MTU mismatch leads to packet fragmentation and retransmission, and the OA system itself is not optimized for high latency environments, all of which invisibly exacerbate the sense of access latency.

2. Breaking through: A Three in One Systematic Optimization Plan

To thoroughly improve the cross-border OA access experience, we cannot solve network problems in isolation, but should build a coverage network DNS、 The full stack optimization system for applications.

1. Network layer: SD-WAN intelligent path selection

This is currently the most cost-effective and stable landing solution. By deploying SD-WAN edge devices (CPE) in enterprise offices and utilizing intelligent path selection technology, international routes can dynamically avoid congestion based on real-time network quality.

Forward Error Correction (FEC) technology: Redundant check packets are sent at the sending end, and even if there is a random packet loss of about 10% in the network, the receiving end can directly restore the data without retransmission, greatly reducing stuttering.

Link aggregation and splitting: Multiple low-cost links are bundled to achieve dedicated line quality, and OA traffic is prioritized for optimization channels through deep packet identification (DPI). Ordinary web browsing traffic is routed through the local public network, greatly saving cross-border bandwidth costs.

2. DNS layer: Localized intelligent resolution optimization

In traditional mode, all DNS queries need to be resolved back to the source in China, and a single resolution may take up to 500ms.

Solution: Deploy an intelligent DNS parser locally in Japan and configure a layered caching strategy. After local caching of hotspot records, the parsing time can be rapidly reduced to less than 50ms, achieving a second level response.

3. Application layer: Targeted performance tuning

Unified login authentication optimization: Implement Token pre refresh mechanism to reduce slow interfaces and duplicate authentication waiting time caused by unified authentication.

Front end performance optimization: Compress and merge the front-end resources of the OA system, reduce the number of HTTP requests, and decrease the number of network interactions.

Deep optimization of MTU and MSS values: Due to the addition of encryption encapsulation, it is recommended to manually adjust the MSS value of internal network terminals or security gateways to between 1360-1420, or reduce the MTU to 1400, which can effectively solve stubborn problems such as inability to open large file web pages and upload interruptions.

3. Advanced: Considerations for Physical Dedicated Lines and Localized Deployment

For core business scenarios that require extremely high network stability and security, such as financial transactions and interconnection of core data centers, international physical dedicated lines are still the ultimate choice. It provides end-to-end layer 2 physical isolation with top-level security of extremely low latency and zero packet loss, but at the cost of high costs and long deployment cycles.

In addition, solving problems from the architecture source is also a way of thinking. Multinational corporations may consider implementing a localized deployment strategy for OA systems, which involves deploying servers in local data centers in Japan and assigning local IP addresses. This not only fundamentally eliminates delays in cross-border transmission, but also helps companies comply with local data protection regulations in Japan and avoid compliance risks in cross-border data transmission.

Through the above systematic three-layer optimization, even in the face of complex network environments with cross-border access, a qualitative leap can be achieved. The average page loading time can be optimized from 8-12 seconds to 2-3 seconds, and the document opening delay can be reduced from 45-60 seconds to 8-12 seconds. This can not only directly reduce the economic losses caused by business interruptions, but also significantly improve the collaboration efficiency and employee satisfaction of multinational teams, injecting strong digital power into the global operation of enterprises.

二、Shigeng Communication Global Office Network Products:

The global office network product of Shigeng Communication is a high-quality product developed by the company for Chinese and foreign enterprise customers to access the application data transmission internet of overseas enterprises by making full use of its own network coverage and network management advantages.

Features of Global Application Network Products for Multinational Enterprises:

1. Quickly access global Internet cloud platform resources

2. Stable and low latency global cloud based video conferencing

3. Convenient and fast use of Internet resource sharing cloud platform (OA/ERP/cloud storage and other applications

Product tariff: